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Author

Louis Archambault

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Conference Open access Sep 2026

Study of attenuation correction in sparse-view tomographic dose reconstruction with a static multi-stack scintillating fiber detector

High-resolution two-dimensional dosimetry is important for radiotherapy quality assurance. Scintillating fiber tomodosimetry is attractive because of its near water equivalence and fine spatial sampling, but most implementations rely on detector rotation. Here, we report Monte Carlo simulations of a static multi-stack...

Sajjad Ahmad Khan, Luc Beaulieu, Louis Archambault · 0 citations
Preprint Sep 2026

Dosimetric equivalence of deep learning prostate contours after LDR brachytherapy: pre-declared margins, patient-level acceptance thresholds and the incremental predictive value of DVH indices

Background and purpose: Dose Volume Histogram (DVH) indices remain the main dose-effect metrics for toxicity prediction, but they depend on how contours were made. Inter-observer variability (IOV) is unavoidable and clinically accepted, so the question for automatic segmentation addresses equivalence: do automatic cont...

Louis-Bernard St-Cyr, Anne Saint-Laurent, José Angel Lesteiro-Tejeda et al. · 0 citations

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